Banned Trader Kept Working for Years Before Regulator Caught Him

Mark Valentine, a former financial industry executive whose aggressive trading earned him a ban from Canadian regulators nearly 20 years ago, never really quit.

Ontario’s Capital Markets Tribunal has found that Valentine — barred for life in 2004 from holding senior roles at corporate issuers in the Canadian province — flouted that prohibition repeatedly, taking on director or officer positions at dozens of small companies.